A 2,000-kilogram railroad car moving at 5 m/s collides with a 6,000-
kilogram railroad car at rest. If the cars stick together, what is their velocity
after the collision?

Shape 1 and shape 2 are plotted on a coordinate plane. which statement about the shapes is true? a. shape 1 and shape 2 are not congruent. b. a translation will prove that shape 2 is congruent to shape 1.c. a rotation and a translation will prove that shape 2 is congruent to shape 1.d. a reflection, a rotation, and a translation will prove that shape 2 is congruent to shape 1.

Which words indicate a text is written i the first-person? a. she, her, hers b. they, them, theirs c. he, him, his d. i, me, my

Part a which statement best describes a central idea in this narrative? in times of tragedy, it is difficult to determine how best to be of service. in times of crisis, people prefer to be alone. young people tend to look to older people to take action in times of tragedy. when people publicly commit to being of service, they are more likely to follow through. part b which detail from the text best to shape the central idea in part a? "'i thought you might have too much going on already. i saw everyone post online.' martin said, 'i don’t think anyone wanted to be in the way today, so i’m glad you came.'" "finally, he said, 'i don’t know what to do. i guess i should tell him to let me know if he needs anything, but that doesn’t feel like enough.'" "he wondered how many people would actually show up to out and how many would simply hope that enough others did." "he explained to her that martin’s mom had died, and told her how he felt about his friend’s loss. 'what do you plan to do for him? ' his mother asked."